Slab Leak Repair in Hyattsville, MD

Clues that point under the floor

• The meter's leak indicator spins with no water in use
• A basement floor that stays damp in one spot, even in dry weather
• Efflorescence or white mineral crust spreading on concrete near where the water line enters
• A warm area on a tiled lower level or a finished basement
• Pressure that has slowly dropped throughout the house

Look at exposed pipe first. In a basement home, most leaks are in pipe you can see along the joists or walls.

Older houses, older pipe

Hyattsville's housing is some of the oldest in the county. The median home dates to about 1963, and roughly half are older than that, including late-1880s Victorians and interwar Sears kit and Arts and Crafts bungalows in the National Register historic district. Houses that age may still have galvanized steel supply pipe, early copper, or a service line that was patched more than once over the decades. Where that pipe passes beneath a basement slab, often from the front wall to a shutoff or laundry area, corrosion and settling can open a leak no one sees until the floor stays wet.

WSSC Water publishes a service line inventory map you can search by address, and it is identifying service line materials on private property as well. That record is worth checking before deciding whether to repair one spot or replace the whole run. If water is surfacing near the curb, call WSSC's emergency line, 301-206-4002.

What drives the cost

• Locating. Older homes with mixed pipe materials can take longer to isolate.
• Repair or reroute. In a basement house, rerouting new pipe along the ceiling joists is often simpler than breaking concrete.
• Pipe condition. If the galvanized line is corroded throughout, replacing the run makes more sense than patching it.
• Finishes. Finished basements and tile add restoration work.
• Permit. WSSC Water issues plumbing permits in Prince George's County, and the City of Hyattsville has no permit office of its own; building permits come from the county.

When you call

You will reach an independent plumber who serves Hyattsville. Say how old the house is if you know, what the meter did during your test, and whether you have seen water on the basement floor or only a higher bill. If the leak is obvious and spreading, close the main valve near where the service enters the house.